/*! jQuery Address v.1.6 | (c) 2009, 2013 Rostislav Hristov | jquery.org/license */
(function ($) {

	$.address = (function () {

		var _trigger = function(name) {
				var e = $.extend($.Event(name), (function() {
					var parameters = {},
						parameterNames = $.address.parameterNames();
					for (var i = 0, l = parameterNames.length; i < l; i++) {
						parameters[parameterNames[i]] = $.address.parameter(parameterNames[i]);
					}
					return {
						value: $.address.value(),
						path: $.address.path(),
						pathNames: $.address.pathNames(),
						parameterNames: parameterNames,
						parameters: parameters,
						queryString: $.address.queryString()
					};
				}).call($.address));
				$($.address).trigger(e);
				return e;
			},
			_array = function(obj) {
				return Array.prototype.slice.call(obj);
			},
			_bind = function(value, data, fn) {
				$().bind.apply($($.address), Array.prototype.slice.call(arguments));
				return $.address;
			},
			_unbind = function(value,  fn) {
				$().unbind.apply($($.address), Array.prototype.slice.call(arguments));
				return $.address;
			},
			_supportsState = function() {
				return (_h.pushState && _opts.state !== UNDEFINED);
			},
			_hrefState = function() {
				return ('/' + _l.pathname.replace(new RegExp(_opts.state), '') +
					_l.search + (_hrefHash() ? '#' + _hrefHash() : '')).replace(_re, '/');
			},
			_hrefHash = function() {
				var index = _l.href.indexOf('#');
				return index != -1 ? _l.href.substr(index + 1) : '';
			},
			_href = function() {
				return _supportsState() ? _hrefState() : _hrefHash();
			},
			_window = function() {
				try {
					return top.document !== UNDEFINED && top.document.title !== UNDEFINED && top.jQuery !== UNDEFINED &&
						top.jQuery.address !== UNDEFINED && top.jQuery.address.frames() !== false ? top : window;
				} catch (e) {
					return window;
				}
			},
			_js = function() {
				return 'javascript';
			},
			_strict = function(value) {
				value = value.toString();
				return (_opts.strict && value.substr(0, 1) != '/' ? '/' : '') + value;
			},
			_cssint = function(el, value) {
				return parseInt(el.css(value), 10);
			},
			_listen = function() {
				if (!_silent) {
					var hash = _href(),
						diff = decodeURI(_value) != decodeURI(hash);
					if (diff) {
						if (_msie && _version < 7) {
							_l.reload();
						} else {
							if (_msie && !_hashchange && _opts.history) {
								_st(_html, 50);
							}
							_value = hash;
							_update(FALSE);
						}
					}
				}
			},
			_update = function(internal) {
				_st(_track, 10);
				return _trigger(CHANGE).isDefaultPrevented() ||
					_trigger(internal ? INTERNAL_CHANGE : EXTERNAL_CHANGE).isDefaultPrevented();
			},
			_track = function() {
				if (_opts.tracker !== 'null' && _opts.tracker !== NULL) {
					var fn = $.isFunction(_opts.tracker) ? _opts.tracker : _t[_opts.tracker],
						value = (_l.pathname + _l.search +
								($.address && !_supportsState() ? $.address.value() : ''))
								.replace(/\/\//, '/').replace(/^\/$/, '');
					if ($.isFunction(fn)) {
						fn(value);
					} else if ($.isFunction(_t.urchinTracker)) {
						_t.urchinTracker(value);
					} else if (_t.pageTracker !== UNDEFINED && $.isFunction(_t.pageTracker._trackPageview)) {
						_t.pageTracker._trackPageview(value);
					} else if (_t._gaq !== UNDEFINED && $.isFunction(_t._gaq.push)) {
						_t._gaq.push(['_trackPageview', decodeURI(value)]);
					}
				}
			},
			_html = function() {
				var src = _js() + ':' + FALSE + ';document.open();document.writeln(\'<html><head><title>' +
					_d.title.replace(/\'/g, '\\\'') + '</title><script>var ' + ID + ' = "' + encodeURIComponent(_href()).replace(/\'/g, '\\\'') +
					(_d.domain != _l.hostname ? '";document.domain="' + _d.domain : '') +
					'";</' + 'script></head></html>\');document.close();';
				if (_version < 7) {
					_frame.src = src;
				} else {
					_frame.contentWindow.location.replace(src);
				}
			},
			_options = function() {
				if (_url && _qi != -1) {
					var i, param, params = _url.substr(_qi + 1).split('&');
					for (i = 0; i < params.length; i++) {
						param = params[i].split('=');
						if (/^(autoUpdate|history|strict|wrap)$/.test(param[0])) {
							_opts[param[0]] = (isNaN(param[1]) ? /^(true|yes)$/i.test(param[1]) : (parseInt(param[1], 10) !== 0));
						}
						if (/^(state|tracker)$/.test(param[0])) {
							_opts[param[0]] = param[1];
						}
					}
					_url = NULL;
				}
				_value = _href();
			},
			_load = function() {
				if (!_loaded) {
					_loaded = TRUE;
					_options();
					$('a[rel*="address:"]').address();
					if (_opts.wrap) {
						var body = $('body'),
							wrap = $('body > *')
								.wrapAll('<div style="padding:' +
									(_cssint(body, 'marginTop') + _cssint(body, 'paddingTop')) + 'px ' +
									(_cssint(body, 'marginRight') + _cssint(body, 'paddingRight')) + 'px ' +
									(_cssint(body, 'marginBottom') + _cssint(body, 'paddingBottom')) + 'px ' +
									(_cssint(body, 'marginLeft') + _cssint(body, 'paddingLeft')) + 'px;" />')
								.parent()
								.wrap('<div id="' + ID + '" style="height:100%;overflow:auto;position:relative;' +
									(_webkit && !window.statusbar.visible ? 'resize:both;' : '') + '" />');
						$('html, body')
							.css({
								height: '100%',
								margin: 0,
								padding: 0,
								overflow: 'hidden'
							});
						if (_webkit) {
							$('<style type="text/css" />')
								.appendTo('head')
								.text('#' + ID + '::-webkit-resizer { background-color: #fff; }');
						}
					}
					if (_msie && !_hashchange) {
						var frameset = _d.getElementsByTagName('frameset')[0];
						_frame = _d.createElement((frameset ? '' : 'i') + 'frame');
						_frame.src = _js() + ':' + FALSE;
						if (frameset) {
							frameset.insertAdjacentElement('beforeEnd', _frame);
							frameset[frameset.cols ? 'cols' : 'rows'] += ',0';
							_frame.noResize = TRUE;
							_frame.frameBorder = _frame.frameSpacing = 0;
						} else {
							_frame.style.display = 'none';
							_frame.style.width = _frame.style.height = 0;
							_frame.tabIndex = -1;
							_d.body.insertAdjacentElement('afterBegin', _frame);
						}
						_st(function() {
							$(_frame).bind('load', function() {
								var win = _frame.contentWindow;
								_value = win[ID] !== UNDEFINED ? win[ID] : '';
								if (_value != _href()) {
									_update(FALSE);
									_l.hash = _value;
								}
							});
							if (_frame.contentWindow[ID] === UNDEFINED) {
								_html();
							}
						}, 50);
					}
					_st(function() {
						_trigger('init');
						_update(FALSE);
					}, 1);
					if (!_supportsState()) {
						if ((_msie && _version > 7) || (!_msie && _hashchange)) {
							if (_t.addEventListener) {
								_t.addEventListener(HASH_CHANGE, _listen, FALSE);
							} else if (_t.attachEvent) {
								_t.attachEvent('on' + HASH_CHANGE, _listen);
							}
						} else {
							_si(_listen, 50);
						}
					}
					if ('state' in window.history) {
						$(window).trigger('popstate');
					}
				}
			},
			_popstate = function() {
				if (decodeURI(_value) != decodeURI(_href())) {
					_value = _href();
					_update(FALSE);
				}
			},
			_unload = function() {
				if (_t.removeEventListener) {
					_t.removeEventListener(HASH_CHANGE, _listen, FALSE);
				} else if (_t.detachEvent) {
					_t.detachEvent('on' + HASH_CHANGE, _listen);
				}
			},
			_uaMatch = function(ua) {
				ua = ua.toLowerCase();
				var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
					/(webkit)[ \/]([\w.]+)/.exec( ua ) ||
					/(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
					/(msie) ([\w.]+)/.exec( ua ) ||
					ua.indexOf('compatible') < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
					[];
				return {
					browser: match[ 1 ] || '',
					version: match[ 2 ] || '0'
				};
			},
			_detectBrowser = function() {
				var browser = {},
					matched = _uaMatch(navigator.userAgent);
				if (matched.browser) {
					browser[matched.browser] = true;
					browser.version = matched.version;
				}
				if (browser.chrome) {
					browser.webkit = true;
				} else if (browser.webkit) {
					browser.safari = true;
				}
				return browser;
			},
			UNDEFINED,
			NULL = null,
			ID = 'jQueryAddress',
			STRING = 'string',
			HASH_CHANGE = 'hashchange',
			INIT = 'init',
			CHANGE = 'change',
			INTERNAL_CHANGE = 'internalChange',
			EXTERNAL_CHANGE = 'externalChange',
			TRUE = true,
			FALSE = false,
			_opts = {
				autoUpdate: TRUE,
				history: TRUE,
				strict: TRUE,
				frames: TRUE,
				wrap: FALSE
			},
			_browser = _detectBrowser(),
			_version = parseFloat(_browser.version),
			_webkit = _browser.webkit || _browser.safari,
			_msie = !$.support.opacity,
			_t = _window(),
			_d = _t.document,
			_h = _t.history,
			_l = _t.location,
			_si = setInterval,
			_st = setTimeout,
			_re = /\/{2,9}/g,
			_agent = navigator.userAgent,
			_hashchange = 'on' + HASH_CHANGE in _t,
			_frame,
			_form,
			_url = $('script:last').attr('src'),
			_qi = _url ? _url.indexOf('?') : -1,
			_title = _d.title,
			_silent = FALSE,
			_loaded = FALSE,
			_juststart = TRUE,
			_updating = FALSE,
			_listeners = {},
			_value = _href();

		if (_msie) {
			_version = parseFloat(_agent.substr(_agent.indexOf('MSIE') + 4));
			if (_d.documentMode && _d.documentMode != _version) {
				_version = _d.documentMode != 8 ? 7 : 8;
			}
			var pc = _d.onpropertychange;
			_d.onpropertychange = function() {
				if (pc) {
					pc.call(_d);
				}
				if (_d.title != _title && _d.title.indexOf('#' + _href()) != -1) {
					_d.title = _title;
				}
			};
		}

		if (_h.navigationMode) {
			_h.navigationMode = 'compatible';
		}
		if (document.readyState == 'complete') {
			var interval = setInterval(function() {
				if ($.address) {
					_load();
					clearInterval(interval);
				}
			}, 50);
		} else {
			_options();
			$(_load);
		}
		$(window).bind('popstate', _popstate).bind('unload', _unload);

		return {
			bind: function(type, data, fn) {
				return _bind.apply(this, _array(arguments));
			},
			unbind: function(type, fn) {
				return _unbind.apply(this, _array(arguments));
			},
			init: function(data, fn) {
				return _bind.apply(this, [INIT].concat(_array(arguments)));
			},
			change: function(data, fn) {
				return _bind.apply(this, [CHANGE].concat(_array(arguments)));
			},
			internalChange: function(data, fn) {
				return _bind.apply(this, [INTERNAL_CHANGE].concat(_array(arguments)));
			},
			externalChange: function(data, fn) {
				return _bind.apply(this, [EXTERNAL_CHANGE].concat(_array(arguments)));
			},
			baseURL: function() {
				var url = _l.href;
				if (url.indexOf('#') != -1) {
					url = url.substr(0, url.indexOf('#'));
				}
				if (/\/$/.test(url)) {
					url = url.substr(0, url.length - 1);
				}
				return url;
			},
			autoUpdate: function(value) {
				if (value !== UNDEFINED) {
					_opts.autoUpdate = value;
					return this;
				}
				return _opts.autoUpdate;
			},
			history: function(value) {
				if (value !== UNDEFINED) {
					_opts.history = value;
					return this;
				}
				return _opts.history;
			},
			state: function(value) {
				if (value !== UNDEFINED) {
					_opts.state = value;
					var hrefState = _hrefState();
					if (_opts.state !== UNDEFINED) {
						if (_h.pushState) {
							if (hrefState.substr(0, 3) == '/#/') {
								_l.replace(_opts.state.replace(/^\/$/, '') + hrefState.substr(2));
							}
						} else if (hrefState != '/' && hrefState.replace(/^\/#/, '') != _hrefHash()) {
							_st(function() {
								_l.replace(_opts.state.replace(/^\/$/, '') + '/#' + hrefState);
							}, 1);
						}
					}
					return this;
				}
				return _opts.state;
			},
			frames: function(value) {
				if (value !== UNDEFINED) {
					_opts.frames = value;
					_t = _window();
					return this;
				}
				return _opts.frames;
			},
			strict: function(value) {
				if (value !== UNDEFINED) {
					_opts.strict = value;
					return this;
				}
				return _opts.strict;
			},
			tracker: function(value) {
				if (value !== UNDEFINED) {
					_opts.tracker = value;
					return this;
				}
				return _opts.tracker;
			},
			wrap: function(value) {
				if (value !== UNDEFINED) {
					_opts.wrap = value;
					return this;
				}
				return _opts.wrap;
			},
			update: function() {
				_updating = TRUE;
				this.value(_value);
				_updating = FALSE;
				return this;
			},
			title: function(value) {
				if (value !== UNDEFINED) {
					_st(function() {
						_title = _d.title = value;
						if (_juststart && _frame && _frame.contentWindow && _frame.contentWindow.document) {
							_frame.contentWindow.document.title = value;
							_juststart = FALSE;
						}
					}, 50);
					return this;
				}
				return _d.title;
			},
			value: function(value) {
				if (value !== UNDEFINED) {
					value = _strict(value);
					if (_value == value && !_updating) {
						return;
					}
					_value = value;
					if (_opts.autoUpdate || _updating) {
						if (_update(TRUE)) {
							return this;
						}
						if (_supportsState()) {
							_h[_opts.history ? 'pushState' : 'replaceState']({}, '',
									_opts.state.replace(/\/$/, '') + (_value === '' ? '/' : _value));
						} else {
							_silent = TRUE;
							if (_webkit) {
								if (_opts.history) {
									_l.hash = '#' + _value;
								} else {
									_l.replace('#' + _value);
								}
							} else if (_value != _href()) {
								if (_opts.history) {
									_l.hash = '#' + _value;
								} else {
									_l.replace('#' + _value);
								}
							}
							if ((_msie && !_hashchange) && _opts.history) {
								_st(_html, 50);
							}
							if (_webkit) {
								_st(function(){ _silent = FALSE; }, 1);
							} else {
								_silent = FALSE;
							}
						}
					}
					return this;
				}
				return _strict(_value);
			},
			path: function(value) {
				if (value !== UNDEFINED) {
					var qs = this.queryString(),
						hash = this.hash();
					this.value(value + (qs ? '?' + qs : '') + (hash ? '#' + hash : ''));
					return this;
				}
				return _strict(_value).split('#')[0].split('?')[0];
			},
			pathNames: function() {
				var path = this.path(),
					names = path.replace(_re, '/').split('/');
				if (path.substr(0, 1) == '/' || path.length === 0) {
					names.splice(0, 1);
				}
				if (path.substr(path.length - 1, 1) == '/') {
					names.splice(names.length - 1, 1);
				}
				return names;
			},
			queryString: function(value) {
				if (value !== UNDEFINED) {
					var hash = this.hash();
					this.value(this.path() + (value ? '?' + value : '') + (hash ? '#' + hash : ''));
					return this;
				}
				var arr = _value.split('?');
				return arr.slice(1, arr.length).join('?').split('#')[0];
			},
			parameter: function(name, value, append) {
				var i, params;
				if (value !== UNDEFINED) {
					var names = this.parameterNames();
					params = [];
					value = value === UNDEFINED || value === NULL ? '' : value.toString();
					for (i = 0; i < names.length; i++) {
						var n = names[i],
							v = this.parameter(n);
						if (typeof v == STRING) {
							v = [v];
						}
						if (n == name) {
							v = (value === NULL || value === '') ? [] :
								(append ? v.concat([value]) : [value]);
						}
						for (var j = 0; j < v.length; j++) {
							params.push(n + '=' + v[j]);
						}
					}
					if ($.inArray(name, names) == -1 && value !== NULL && value !== '') {
						params.push(name + '=' + value);
					}
					this.queryString(params.join('&'));
					return this;
				}
				value = this.queryString();
				if (value) {
					var r = [];
					params = value.split('&');
					for (i = 0; i < params.length; i++) {
						var p = params[i].split('=');
						if (p[0] == name) {
							r.push(p.slice(1).join('='));
						}
					}
					if (r.length !== 0) {
						return r.length != 1 ? r : r[0];
					}
				}
			},
			parameterNames: function() {
				var qs = this.queryString(),
					names = [];
				if (qs && qs.indexOf('=') != -1) {
					var params = qs.split('&');
					for (var i = 0; i < params.length; i++) {
						var name = params[i].split('=')[0];
						if ($.inArray(name, names) == -1) {
							names.push(name);
						}
					}
				}
				return names;
			},
			hash: function(value) {
				if (value !== UNDEFINED) {
					this.value(_value.split('#')[0] + (value ? '#' + value : ''));
					return this;
				}
				var arr = _value.split('#');
				return arr.slice(1, arr.length).join('#');
			}
		};
	})();

	$.fn.address = function(fn) {
		$(this).each(function(index) {
			if (!$(this).data('address')) {
				$(this).on('click', function(e) {
					if (e.shiftKey || e.ctrlKey || e.metaKey || e.which == 2) {
						return true;
					}
					var target = e.currentTarget;
					if ($(target).is('a')) {
						e.preventDefault();
						var value = fn ? fn.call(target) :
							/address:/.test($(target).attr('rel')) ? $(target).attr('rel').split('address:')[1].split(' ')[0] :
							$.address.state() !== undefined && !/^\/?$/.test($.address.state()) ?
									$(target).attr('href').replace(new RegExp('^(.*' + $.address.state() + '|\\.)'), '') :
									$(target).attr('href').replace(/^(#\!?|\.)/, '');
						$.address.value(value);
					}
				}).on('submit', function(e) {
					var target = e.currentTarget;
					if ($(target).is('form')) {
						e.preventDefault();
						var action = $(target).attr('action'),
							value = fn ? fn.call(target) : (action.indexOf('?') != -1 ? action.replace(/&$/, '') : action + '?') +
								$(target).serialize();
						$.address.value(value);
					}
				}).data('address', true);
			}
		});
		return this;
	};

})(jQuery);
